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Komadel, P., Stucki, J.W. Quantitative Assay of Minerals for Fe2+ and Fe3+ Using 1,10-Phenanthroline: III. A Rapid Photochemical Method. Clays Clay Miner. 36, 379–381 (1988). https://doi.org/10.1346/CCMN.1988.0360415
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DOI: https://doi.org/10.1346/CCMN.1988.0360415